Cheats for Call of Duty 4: Modern Warfare for PS3

While play press L3, R3, L3, L3, L3.

To activate this cheat, you must have completed all of the campaign missions on any difficulty level and gathered at least 10 pieces of enemy intel. While playing, hit START, go to OPTIONS, and select CHEATS. Go down to Cluster Bombs and hit X. With this on, when you throw Frag Grenades, the Grenade will explode like normal, and then have around 5 more explosions after wards, so keep away until after the explosions stop. This is a good cheat for drawing your enemy out of a room or killing large numbers.

The first Intel piece is located in a room where two men are sleeping (PROLOGUE)

This spot can only be reached when you are playing the old school free-for-all section. Go to the building at the very end of the map on the opposite side of the bus. You can get to the very top of the building that is around the corner. First, get to the second story where the chair is found. Get on the top of the chair facing the wall, and jump. You may have to run and jump, but eventually you will catch an edge. You can then work your way up to a great sniping position.

Use an AK-47, or G3 for one hit kills. You'll have to kill an enemy, first, because they are the only ones who have them. And it has to be either an AK-47 or G3, not AK-74u or G36.

After you put down your captain and set out the claymores he tells you to find a good sniper position and go prone. About 20 feet to the northeast of the captain is a ticket booth that you can hide in until the helicopter comes. Go into it and go prone underneath the table. Here you will be protected from the grenades and if one comes right outside the door you will still be protected.

In multiplayer mode, if you have the last stand perk, try picking up different weapons. I you go into last stand mode while switching an equipped weapon for one on the ground, you will use the weapon u were swapping for instead of your sidearm, but be careful when swapping out your pistol for one, if you don't have a pistol on you, you'll use your spare M9.

Equip yourself with a M16, last color, with a silencer. The silencer makes you invisible on the map. Sneak up on any enemy opponent in multiplayer and FIRE on the head. (SNIPING ENEMIES ARE EASIER) You gain 10 points and 1/25 headshots for the M16 Marksmen challenge.

On pipeline go to the back of the trains. There is a ladder climb up the ladder and you can snipe from there.

Straight across from the 12th intel, look for a building with a big hole in it and the intel is up in there on a dresser.

The Hunted: After going through two greenhouses, there will be a ruined house, go in it but the intel is near 2 picnic tables.

Ok this one is still on the bog. Now listen closely they are behind boxes. After you go through the fence, turn left and another left and look for a white refrigerator.

Where you usually go sniping, there is an RPG up there, head STRAIGHT right. (CHARLIE DON'T SURF)

Once you find the informant in a building on the top floor, search around for the intel on that floor in a bathroom by a toilet (bathroom is big) (BLACKOUT)

Ever want to complete the level but you have ALL the intel on the level? Well, as soon as you collect your intel pieces on a level, just save and quit. This way you can go back in the game and finish the level later.

Once you get the Red Dot Scope add-on to your weapons, use it over the ACOG scope. The red dot will not enhance or take away anything and provides a better aim point on most weapons. The ACOG scope will actually add more range to your weapon, but take away accuracy which accomplishes almost nothing, especially for snipers because it takes away range and adds nothing.

At level 38 in Multiplayer mode, you get the Overkill Perk Class 2 (located in the Perk 2 or Red Perks). This allows you to carry two primary weapons rather than a pistol. Some of the guns in online play can share ammunition. If you are a skilled sniper and prefer the bolt action to a semi-auto sniper, you can share ammo between the R700 (unlocked at level 34) and the G3 assault rifle (unlocked at level 25). Instead of having 40 rounds, you will have 152 rounds for the sniper, effectively giving you an endless supply of ammo for the R700. If you are a G3 user, you will gain an extra 40 rounds (two clips). This works both ways; since you share ammunition, you might not want to use too much ammo with the G3. Also, there are more combinations than just this one; experiment with different guns to see which ones can share ammo. When you reach level 46, you will get the M14 Assault Rifle. In the class that you want to have the extra ammunition, you will need the M14 Assault Rifle and M21 Sniper Rifle as weapons. To use those two weapons, you must have Overkill (obtained at level 38) and your second Perk on Overkill. For the other two Perks, you can have whatever desired.

The Intel Pieces can be found in the following levels. There are a total of thirty Intel Pieces.

Level 2: 2 Intel Pieces
Level 4: 2 Intel Pieces
Level 5: 3 Intel Pieces
Level 6: 2 Intel Pieces
Level 7: 2 Intel Pieces
Level 9: 3 Intel Pieces
Level 10: 2 Intel Pieces
Level 12: 2 Intel Pieces
Level 13: 3 Intel Pieces
Level 14: 2 Intel Pieces
Level 16: 2 Intel Pieces
Level 17: 1 Intel Piece
Level 18: 2 Intel Pieces
Level 19: 2 Intel Pieces

Successfully complete all Assault Rifle challenges.

Reach level 55 to unlock Prestige mode. This is a multiplayer only mode that starts you back at level 1. You can repeat this ten more times.

Successfully complete all Sniper challenges.

Successfully complete all LMG challenges.

Successfully complete Story mode on any difficulty setting and watch the entire credits to unlock the bonus Epilogue mission.

Collect 10 pieces of enemy intel to unlock this. It changes the normal colors into their negative form such as white to black and black to white.

Collect 10 pieces of enemy intel to unlock this. Gives you the feeling of a silent movie during gameplay.